The process of the formation of polar bodies very 339 widely distributed
The significance of polar bodies according to 340 Minot, Balfour, and van Beneden
My hypothesis of the removal of the histogenetic 341 part of the nucleus
Confirmation by the discovery of polar bodies in 345 parthenogenetic eggs
Parthenogenetic eggs form only _one_ polar body, 346 while eggs requiring fertilization form _two_
Parthenogenesis depends upon the fact that the 348 part of the nucleus which is expelled from sexual eggs in the second polar body, remains in the egg
History of this discovery 349
